diff --git a/build/org.eclipse.cdt.managedbuilder.core.tests/tests/org/eclipse/cdt/managedbuilder/language/settings/providers/tests/GCCBuildCommandParserTest.java b/build/org.eclipse.cdt.managedbuilder.core.tests/tests/org/eclipse/cdt/managedbuilder/language/settings/providers/tests/GCCBuildCommandParserTest.java
index 7c4b6670053..95547eedd39 100644
--- a/build/org.eclipse.cdt.managedbuilder.core.tests/tests/org/eclipse/cdt/managedbuilder/language/settings/providers/tests/GCCBuildCommandParserTest.java
+++ b/build/org.eclipse.cdt.managedbuilder.core.tests/tests/org/eclipse/cdt/managedbuilder/language/settings/providers/tests/GCCBuildCommandParserTest.java
@@ -682,6 +682,7 @@ public class GCCBuildCommandParserTest extends BaseTestCase {
 				+ " -D'MACRO5=\"quoted value\"'"
 				+ " -DMACRO6=\\\"escape-quoted value\\\""
 				+ " -DMACRO7=\"'single-quoted value'\""
+				+ " -DMACRO8=\"\\\"escape-quoted value\\\"\""
 				+ " file.cpp");
 		parser.shutdown();
 
@@ -702,6 +703,7 @@ public class GCCBuildCommandParserTest extends BaseTestCase {
 		assertEquals(new CMacroEntry("MACRO5", "\"quoted value\"", 0), entries.get(5));
 		assertEquals(new CMacroEntry("MACRO6", "\"escape-quoted value\"", 0), entries.get(6));
 		assertEquals(new CMacroEntry("MACRO7", "'single-quoted value'", 0), entries.get(7));
+		assertEquals(new CMacroEntry("MACRO8", "\"escape-quoted value\"", 0), entries.get(8));
 	}
 
 	/**
diff --git a/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/language/settings/providers/AbstractBuildCommandParser.java b/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/language/settings/providers/AbstractBuildCommandParser.java
index 42296eb9998..c4ee1354914 100644
--- a/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/language/settings/providers/AbstractBuildCommandParser.java
+++ b/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/language/settings/providers/AbstractBuildCommandParser.java
@@ -49,7 +49,20 @@ public abstract class AbstractBuildCommandParser extends AbstractLanguageSetting
 
 
 	private static final String LEADING_PATH_PATTERN = "\\S+[/\\\\]"; //$NON-NLS-1$
-	private static final Pattern OPTIONS_PATTERN = Pattern.compile("-[^\\s\"']*(\\s*((\".*?\")|('.*?')|([^-\\s][^\\s]+)))?"); //$NON-NLS-1$
+
+	/**
+	 * "foo"
+	 * Using look-ahead and look-behind to resolve ambiguity with "\" {@link #QUOTE_BSLASH_QUOTE}
+	 */
+	private static final String QUOTE = "(\"(?!\\\\).*?(?<!\\\\)\")"; //$NON-NLS-1$
+	/** \"foo\" */
+	private static final String BSLASH_QUOTE = "(\\\\\".*?\\\\\")"; //$NON-NLS-1$
+	/** 'foo' */
+	private static final String SINGLE_QUOTE = "('.*?')"; //$NON-NLS-1$
+	/** "\"foo\"" */
+	private static final String QUOTE_BSLASH_QUOTE = "(\"\\\\\".*?\\\\\"\")"; //$NON-NLS-1$
+
+	private static final Pattern OPTIONS_PATTERN = Pattern.compile("-[^\\s\"'\\\\]*(\\s*(" + QUOTE +"|" + QUOTE_BSLASH_QUOTE + "|" + BSLASH_QUOTE + "|" + SINGLE_QUOTE + "|([^-\\s][^\\s]+)))?"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$<
 	private static final int OPTION_GROUP = 0;
 
 	public enum ResourceScope {
diff --git a/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/language/settings/providers/GCCBuildCommandParser.java b/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/language/settings/providers/GCCBuildCommandParser.java
index 5b549f79129..86ca352dd23 100644
--- a/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/language/settings/providers/GCCBuildCommandParser.java
+++ b/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/language/settings/providers/GCCBuildCommandParser.java
@@ -40,6 +40,7 @@ public class GCCBuildCommandParser extends AbstractBuildCommandParser implements
 			new IncludeFileOptionParser("-include\\s*([\"'])(.*)\\1", "$2"),
 			new IncludeFileOptionParser("-include\\s*([^\\s\"']*)", "$1"),
 			new MacroOptionParser("-D\\s*([\"'])([^=]*)(=(.*))?\\1", "$2", "$4"),
+			new MacroOptionParser("-D\\s*([^\\s=\"']*)=(\"\\\\(\")(.*?)\\\\\"\")", "$1", "$3$4$3"),
 			new MacroOptionParser("-D\\s*([^\\s=\"']*)=(\\\\([\"']))(.*?)\\2", "$1", "$3$4$3"),
 			new MacroOptionParser("-D\\s*([^\\s=\"']*)=([\"'])(.*?)\\2", "$1", "$3"),
 			new MacroOptionParser("-D\\s*([^\\s=\"']*)(=([^\\s\"']*))?", "$1", "$3"),